Hydraulic press



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ILLINOIS.

HYDRAULIC rnnss.

Application filed November 12; 192s Serial No. 674,123.,

To all "whom it may concern:

Be it lmownthat 1, JOHN J. BERRIGAN, a citizenofthe United States, residingat Chicago, in the countyofCook and State of Illinois, have invented-a certain new and useful Improvement in Hydraulic Presses, of which the following is a specification.

This invention relates-to ahydraulic press, and particularly to a horizontalhydraulic press. It has for one object to provide a satisfactory hydraulic press which'operates in a horizontal position. Another object is to provide a press which while having a comparatively short initial travel, limited by the length of the compression cylinder, will be, able to compress through a distance longer than the length of the cylinder. Other objects will appear from time to time throughout the specificationgand claims. 7

My invention is illustrated more or less diagrammatically in the accompanying drawings, wherein Figure 1 is a side elevation showing the,

press partly open at .top and bottom;

Figure 2 is a vertical cross section showing the press entirely open;

Figure 3 shows the press partiallycompressed;

Figure 4' shows the entire compression assemblymoved laterally for a second com pression stroke;

Figure 5 is a vertical cross section on the linefi -o of Figure 4; c

Figure 6 is a vertical section on an enlarged scale showing a portion of one of the bottom plates of the press; 5 v

Figure 7 is an elevation with parts broken away showing one of the partitions within the press;

Figure 8 is ahorizontal cross section taken on the line 88 of Figure 7;

Figure Qisa section on an enlarged scale taken on the llne 9-9 of Figure 3 Figure 10. is a section onj anenlarged scale showing one of the-attaching; members by. means of whlch the top and bottom plates are held in position;

Figure 11 IS. a mod fied v ew slmilar to Figure 9;

FigurelZ is a side elevation showing the.

pipe of Figure 11.

The rods G are perforated at Like parts are designated by like characters throughout;

A is a foundatio'n-of-floor upon which the press is positioned, E, B are-endfsupports joined by side channel members GCwhich serve as runners for the partitions, bind the two end frame members together, and carry the outside frame of'tlieoutside casing. D is a hydraulic compression cylinder within whicha plunger is mounted; D D are pipes by means of which pressure may be applied to either side ofythe, plunger so as to move it to the right or left.

.llis a platen adapted-to slide on the members O, C and against which the pressure is exerted; F, is a second platen at the opposite end of the press which is directly connected' to the plunger rod FR,

Mounted in the platen F" are two rods G, G. These rods are adapted to slide through the perforations in the platen E and the perforations in the end framemembers BJ H, are partitions mounted within, the

press, notched as at perforated topermit the'rods G to slide through them, and fienibly joined together by means of chains H H2 7 steam pipes I I lie within the channel CF The casing I 1s provided. with perforations J which are provided, with swinging COX/'91P ings; J normally inthe closed POSlilOIT and held closed by means of the thumbnutsd of points as at G G K'is a rod which may be inserted in the perforations J and as. shown in. Figured may he back of the platen E, and against which pressure may be exerted when it is desired to, press in the position shown i n Figured;

Hinged on thebottom of thelpresscasing are a plurality of perforated floor plates L.

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These plates are hinged on the casing as at L and are provided with swinging hooks L by means of which they are held in place. In addition to these hooks, there are provided locking nuts L by means of which they may be rigidly locked against opening.

In the plates L are a plurality of perforations M which perforations are larger at their bottom than at the top as shown particularly in Figures 5 and 6. The top of the casing is provided with a plurality of swinging doors N. These doors are not perforated. They are locked in position by the locking nuts N similar to the nuts L mentioned above. Along the side of the casing below the hinges N of the doors N are mounted stop members N against Which the members N rest when the top of the press is open as shown in Figure 5.

The lock nuts L are shown on an enlarged scale in Figure 10. As there shown they consist of a pivoted screw threaded shank L and the hand screw L mounted thereupon. The hand screw can be raised to the dotted line position when the door is closed. The hook is then slipped into position, the screw is then rotated into the full line position and the member L is screwed down and the door is locked rigidly into position.

As shown in Figure 9 a pin G has been inserted in the perforation G of one of the rods G- Figure 7 is an enlarged elevation showing the partition H. The partition proper is formed of a sheet of steel or other suitable metal 0, upon which are fastened a plurality of half rounded members 0 0 On the outside of each of these is secured a perforated plate 0 The partition members are provided with large lateral notches 0 adapted to engage the channel member 0, and provided with small lateral notches 0 into which the chains H may be dropped.

Although I have shown an operative de vice, still it will be evident that many changes in size, shape and arrangement of parts might be made without departing materially from the spirit of my invention: and I wish therefore that my showing be taken as in a sense diagrammatic.

In Figure 11, which is a view similar to Figure 9, is shown a modification of the device. Instead of using the solid rods G, one or more hollow pipes P are used. These pipes are connected to the source of steam and are thus heated and serve to heat the interior of the press and to heat its contents. The pipes are provided with one or more circumferential grooves P They pass through the platen and partitions just as do the rods G. When it is desired to use them to draw the platen forward, they are secured to the platen by means of 'U-bolts Q, which slip over the lugs on the platen,

and whose shanks lie within the grooves P. For the purpose of convenience the U-bolts are provided with eyes Q} by means of which they may be handled or secured to the machine by a short chain so as to prevent loss.

As shown in Figures 2, 3, and at, at the right hand end of each iignre, I have added the plates R. I have shown these plates inserted only between some of the partition plates, but in practice, if used at all, they would be inserted between all the partition plates. The plates are simply fiat metallic plates. When the press is to be filled as shown in Figure 2, the plates rest in the angular position shown. The press is then filled and material rests upon the plates and between the partions. As the press is closed the bottom sides of the plates are pressed over laterally and the plates tend to assume an upright position. Since there is practically no pressure on the under side of the plat-es, before the pressing operation is complete, they will assume a full upright position and will lay against the partitions as shown in Figures 3 and a. This shifting of the position of the plates R allows for some expansion downward of the cake and thus serves to a considerable degree as a safety valre to prevent damage to the press from excess pressure.

IV hen the press is opened after the cake has been removed, the plates are easily readjusted to the position shown in Figure l.

The use and operation of my invention are as follows:

The press is opened for pressing as shown in Figure 1. In that position the top plates will be open and the bottom plates closed. The material to be pressed will be run into the press and the top plates then preferably closed. Pressure will then be exerted, the plunger expelled and the platen F, together with the partition H move into the position shown in Figure 3. This is the full extended position of the plunger. 'lhe pin (r1 will then be inserted in the rods 4} and pressure applied to the opposite side of the plunger. Thus the entire pressing assembly, including the platens E and F and the partitions H with the material between them will be bodily moved into the position shown in Figure 4. Then the rod ii will be put into one of the perforations being positioned baclc of the platen l5. Pressure will then again be exerted on the opposite side of the plunger and the material will be further compre. 1d. the platen. F, together with the partitions H and the material moving laterally against. the platen E which is now held by the rod K. This operation may be repeated a number of. times until a suiticient pressing effect has resulted. By this means with a plunger having, for example, a movement of but thirty the bottom plates frees the niateriali which might otherwise clog the apertures.

I claim 1 In a press, a plurality of platens and a pressure cylinder for icon'ipressing them together, and means for moving said platens together throughout a distance. greater han the effective length of said compression cyl inden:

2; In a horizontal press, plurality of platens and, av pressure cylinder for compressing them together, and means for mom ing said platens together throughout a distance greaterthan the effective length of said compression cylinder. v

3. Ina press, a plurality of platens and a pressure cylinder, means for moving one of them toward the other and 1 means for moving the platens so that said first mentioned platen may be moved intocompress a distance greater than the effective length or" saidcompression cylinder. I r

4;. In a horizontal hydraulic press, a plurality of platens and a pressure cylinder, means for moving one of them toward the other and means for noving the platens so that said first mentioned platen may ne moved in to compress a distanceigreater than the effective length. of said compression cylinder. r 1 i 5. In a press, a plurality of platens, means for holding. one against displacement, and means for moving another toward said platen, means for moving said platens in the reverse direction, means for supporting said first mentioned platen against displacement in the -new,.pos1t1on and means for again moving saidsecond platen toward said first mentioned platen, and means for further repeating this cycle of operations.

6; In a horizontal press, a plurality of platens,- means'for holding one against displacement, and means formoving another toward said platen, means for inoving'said platens in the reverse direction, means for supporting sald first 'mentioned platen against displacement in" the new position and'means for again moving said second platen toward said first mentioned platen and means for further repeating this cycle of operations. I

7. In a press, a plurality of platens and of them toward the other and means a pressure cylinder for compressing them together, and means tor moving said platens together throughout a distance greater than theei'l'ective length of said compression cylinder, and. between'said platens a plurality oi? partitions, and means for automatically spacing said partitions when the press is in the extended position.

8; in a press, a plurality of platens and a pressure cylinder, means for moving one of. them toward the other and means for moving the platens so that said first mentioned platen may be moved into compressa distance greater than the eliective length of said compression cylinder, and between said platens a plurality'of partitions, and means or automatically spacing said partitions when the press is in the extended position.

S). In a horizontal hydraulic press a pair of platens, means for supporting one of them and for moving the other toward it, means for moving bot-h platens in the reverse direction, additional means for supporting said first nuantioncd platen and means for moving said second platen again tox dtlie first platen and for further rethis cv ic oi" operations. and between said platens a plurality of partitions and means for automatically spacing said partitions when the press is in the extended position. e

'10. In a press, a plurality of platens and a pressure cylinder for compressing them together, and means for moving said platens together throughout a distance greater than the eitl'ective length of said compression cylinder, and means for heating said press.

' 1.1. In a-press, a plurali y of platens and a PTQSSHI'Q cylinder for compressing them together, and means for moving said platens together throughout a distance greater than vthe effective length 'of said compression cylinder, and an enclosure for said press surrounding the same and closed at its ends only by said platens i 12. In a. press, a plurality of platens and a pressure cylinder, means tor movingo'ne of them toward the other and means for moving the platens so that said first men-. tioned platen may he moved in to compress a distance greater than the eilective length or said compression cylinder, and an enclosure for said press surrounding-the same and closed at its ends only by said platens, said enclosure provided with movable top .and bottom covers for the admission to and removal from the press of material to; be pressed. I I i idlnapress, a plurality of platens a pressure cylinder, means for moving and one for moving the platens so that said first mentioned platen may be moved in to compress a distance greater thanthe effective length of said compression cylinder. and an en closure for said press surrounding the same and closed its ends only by said platens, said enclosure provided with nuivable top and bottom covers for the admission to and ren'ioval from the press or material to b pressed, and the bottom of said enclosure provided with perforations tor draining, said perforations expanding in Width down- \vardlv.

1+. in a hydraulic press a partition, said mrtition iorn'ied of a main sheet-lilre mem- ;er provided 'Wliill reinforcing and spacing ribs and having perforated erior Walls on r side carried by said ribs.

in a hydraulic ss, a partition. said pa. tition :lormed of main SllQOii-lllii? inemiior provided with reinforcing and spacing l hi perfor ted exterior walls 2' carried by said ribs, said ribs :AOI't ot' the lovver edge oi said l par iti n.

16. In a press, a plurality of platens, and a pressure cylinder for compressing them together, and means for moving said platens together throughout a distance greater tha the eil ective length of said compresison cylinder, and means for heating the exterior and interior of said press, con'iprising a heating means Within said press.

17. In a press, a pair of platens, one of said platens adapted to be held against. movement, the other adapted to be moved toward said platen and carrying a draw fixed to said second platen and extending through said first platen, means for attaching said first mentioned platen to said bars so that it may be withdrawn in response to movement of said second mentioned platen in the reverse direction.

18. In a hydraulic press, a horizonal hydraulic cylinder, a pair oi movable platens, one of them directly connected to the plunger in said cylinder, a pair of connecting rods fixed to said platen and passing through sa d second platen, partitions between said platens mounted on said rods, an enclosure for said assembly closed at its ends only by said platens and provided with removable top and bottom covers, said first platen adapted to be moved laterally to compress matter Within the press at the outer stroke of the plunger, both of said platens together with the partitions and material enclosed therebetween adapted to be moved back so that the first platen lies at its starting position by means of the reverse movement of the plunger, means for supporting said second platen and means for moving said first platen laterally again to compress further the material Within the press.

'19. In a press a plurality of platens and partitions between said platens, and heating means within said press, said partitions ocing mounted thereupon.

2 A press in combination with an apertured bottom therefor, members slidalny mounted Within said press adapted to contact said bottom and to slide across the apertures in said bottom in such manner as to scrape and shear ol'l' material lodging within the apertures and projecting upward into the press.

21. In a press, a plurality of movable partitions, means adapted to cause vertical drainage doivn said partitions.

22. In a press, a plurality of partitions, means adapted to cause vertical drainage down said partitions, said means including perforated plates spaced away from and supported from said partitions.

23. In a press a plurality of movable partitions, means adapted to cause vertical drainage down said partitions, and means for causing lateral drainage across said partitions.

24. In a press, a plurality of partitions, means adapted to cause vertical drainage down said partitions, and means for causing lateral drainage across said partitions, said means including perforated plates supported from and spaced away from said partitions, d plates stopping short of the bottom of d partitions.

25. In a press, a partition and means for heating it, said partition being movable with relation to said heating means, said heating means adapted to serve as a support for said partition.

26. In a press, a partition and means for conducting heat thereto,.said partition being movablewith relation to said heat conducting means, said heat conducting means adapted to serve as a support for said partition.

27. In a press, a partition and a heating pipe, said partition mounted upon said heating pipe and adapted freely to move With relation thereto and to be heated therefrom in Whatever position it may occupy.

28. In a press, a plurality ofplatens, a pressure applying means for compressing them together, and means for moving said platens together throughout a distance greater than the effective operating travel or said pressure applying means.

Signed at Chicago, county of Cook and State of Illinois, this St. day of November. 1923.

JOHN J. BERRIGAN. 

